// user32.c - minimal user32 stubs (no window manager yet)
#include <stdint.h>

// Screen blit is the only graphical primitive available at this stage.
extern void SysScreenBlit(int x, int y, int w, int h, const uint32_t* pixels);

// syscall.dll
extern void SysYield(void);

void BitBlt(int x, int y, int w, int h, const uint32_t* pixels) {
    SysScreenBlit(x, y, w, h, pixels);
}

// Message loop stubs - always return 0.
int GetMessage(void* msg, void* hwnd, unsigned int min, unsigned int max) {
    (void)msg; (void)hwnd; (void)min; (void)max;
    SysYield();
    return 0;
}
int DispatchMessage(const void* msg) { (void)msg; return 0; }